[Chompy]

Uhm, in the second, the loop is running one time more then it should (will produce a var5)

In your first example you first set all the var# to array[b], list[b], blol[b] and blob[b], but in your second example they're all params[b], and then you suddenly use 'temp.pm'(params[c]) in the second example when it should be params[b].. I'm not going to continue explaining since the examples uses different variables, but in the end, they're not equal..

What is b? Why does params[] represent array[], list[], blol[] and blob[]?

You need to show better examples or word your question better :o